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Informix Dynamic Server (IDS) Data Types - CHAR
Versions: Informix Dynamic Server 11.x, 10.x, 9.x and 7.x
| Informix DS - CHAR | |
|---|---|
| Syntax | CHAR[(n)] |
| Data | Fixed-length character data, single-byte and multibyte character sets |
| Parameters | n is the maximum number of bytes, optional |
| Range | 1 ⇐ n ⇐ 32767 |
| Default | n is 1 |
| Padding | Right-padded with spaces to n |
| Error Handling | Exceeding data truncated without warning |
| Storage Size | n bytes |
| Synonyms | CHARACTER |
| Standards | ANSI SQL |
Example:
CREATE TABLE t_char (c1 CHAR(7));
Informix DS CHAR - Equivalents in Other Databases
| Database | Data Type and Conversion |
|---|---|
| Oracle | CHAR(n), 1 ⇐ n ⇐ 2000/charsize |
| SQL Server | CHAR(n), 1 ⇐ n ⇐ 8000 |
| IBM DB2 | CHAR(n), 1 ⇐ n ⇐ 254 |
| MySQL | CHAR(n), 0 ⇐ n ⇐ 255 |
| PostgreSQL | CHAR(n), 1 ⇐ n ⇐ 1G |
| Sybase ASE | CHAR(n), 1 ⇐ n ⇐ pagesize (2K, 4K, 8K or 16K) |
| Sybase ASA | CHAR(n), 1 ⇐ n ⇐ 32767/charsize |
| Teradata | CHAR(n), 1 ⇐ n ⇐ 64000/charsize |
| HP Neoview | CHAR(n), 1 ⇐ n ⇐ (32708 - size of other columns) |
| Interbase/Firebird | CHAR(n), 1 ⇐ n ⇐ 32767/charsize |
| Ingres | CHAR(n), 1 ⇐ n ⇐ 3200 |
Related Data Types in Informix
| Data Types | |||
|---|---|---|---|
| Fixed-length Character Data | NCHAR(n) | ||
| Variable-length Character Data | VARCHAR(n,r) | NVARCHAR(n,r) | LVARCHAR(n) |
| Character Large Objects | TEXT | CLOB | |
All Data Types